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From the Service de Neurologie et pathologie du mouvement, EA2683, MENRT (Drs. Devos, Tir, Waucquier, Defebvre, and Destée), Service de Neuro-ophtalmologie, CNRS FRE 2729 (Dr. Defoort-Dhellemmes), and Service danatomie pathologique, INSERM U 422 (Dr. Maurage), Centre Hospitalier Universitaire de Lille, France.
The authors used flash electroretinography to demonstrate dysfunction of the photopic and scotopic retina in patients with dementia with Lewy bodies and visual hallucinations (VHs) compared with patients with Parkinson disease, patients without VHs, and controls. The retinal dysfunction may be related to slight alteration of the photoreceptors and numerous pale inclusions in the outer plexiform layer found at the post mortem examination, suggesting a specific retinopathy.
Disclosure: The authors report no conflicts of interest.
Received December 21, 2004. Accepted in final form June 15, 2005.
Address for correspondence and reprint requests to Dr. David Devos, Clinique Neurologique, Hôpital R. Salengro, CHU, F-59037 Lille cedex, France; e-mail: d-devos{at}chru-lille.fr
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